The nation's new intelligence chief [has warned] that the global economic crisis is the most serious security peril facing the United States, threatening to topple governments [and] trigger waves of refugees. The economic collapse already looms as the most serious one in decades, if not in centuries," said Dennis C. Blair, director of national intelligence, in [testimony before the Senate Intelligence Committee]. Blair's focus on the economic meltdown represents a sharp contrast from the testimony of his predecessors in recent years, who devoted most of their attention in the annual threat assessment hearing to the issues of terrorism and the wars in Afghanistan and Iraq. "Time is probably our greatest threat," Blair said. "The longer it takes for the recovery to begin, the greater the likelihood of serious damage to U.S. strategic interests." He said that one-quarter of the world's nations had already experienced low-level instability attributed to the economic downturn, including shifts in power. He cited anti-government demonstrations in Europe and Russia, and he warned that much of Latin America and the former Soviet satellite states lacked sufficient cash to cope with the spreading crisis. "Countries will not be able to export their way out of this one because of the global nature" of the crisis, Blair said. U.S. intelligence analysts fear there could be a backlash against American efforts to promote free markets because the crisis was triggered by the United States. "We're generally held to be responsible," Blair said.